发布时间:2025-01-23 17:36:31
开洞大小不能大于梁截面的40%,开洞位置在大于跨中三分之一处为宜,从你截图看出,开一个洞可以,开两个就不太合适,洞尽量避开纵筋位置,居中部开洞
我家的给水管头是PVC的,我装修要全部用PPR的,怎么把PPR和PVC管连起来...
2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31lg multi v 3直流变频中央空调lg160160v 3直流变频空调简介
2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31 2025-01-23 17:36:31